External cage level switches remain one of the most reliable level detection technologies available to process industries. These liquid level switches must perform in a wide range of level control applications, from basic to challenging or even hazardous. In fact, many external cage level switches must comply with the standards set out by industry authorities, such as NACE and ASME, to fulfill safety requirements pertaining to oil and gas processors, power generation plants and other sectors.

When specifying level measurement instrumentation, it’s important to recognize that its design and manufacture should fully support the needs of your critical applications. The float chamber in external cage level switch devices is built to meet specific industry ratings, making its construction an excellent indicator of the quality and reliability of the overall unit. Here are several hallmarks of design integrity of the float chamber.

Magnetrol® manufactures an extensive offering of vertical and horizontal float and displacer switch and transmitter devices that represent the industry standards for highly reliable, highly repeatable performance. Unlike some competitive float chambers constructed “to the intent” of ASME standards, MAGNETROL chambers are designed to ASME B31.1, ASME B31.3, NACE MR0175 and MR0103 standards, meeting the toughest industry specifications. Quality engineering benchmarks have resulted in decades of maintenance-free performance from MAGNETROL liquid level switches – some of which have been in the field for as long as 50 years.

For more information about NACE and ASME specifications and float chamber construction, download the MAGNETROL Float Chamber Design Guide.